update README and main module POD

Netdisco/inc/Module/Install/Win32.pm

@@ -0,0 +1,64 @@
+#line 1
+package Module::Install::Win32;
+
+use strict;
+use Module::Install::Base ();
+
+use vars qw{$VERSION @ISA $ISCORE};
+BEGIN {
+	$VERSION = '1.06';
+	@ISA     = 'Module::Install::Base';
+	$ISCORE  = 1;
+}
+
+# determine if the user needs nmake, and download it if needed
+sub check_nmake {
+	my $self = shift;
+	$self->load('can_run');
+	$self->load('get_file');
+
+	require Config;
+	return unless (
+		$^O eq 'MSWin32'                     and
+		$Config::Config{make}                and
+		$Config::Config{make} =~ /^nmake\b/i and
+		! $self->can_run('nmake')
+	);
+
+	print "The required 'nmake' executable not found, fetching it...\n";
+
+	require File::Basename;
+	my $rv = $self->get_file(
+		url       => 'http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/Nmake15.exe',
+		ftp_url   => 'ftp://ftp.microsoft.com/Softlib/MSLFILES/Nmake15.exe',
+		local_dir => File::Basename::dirname($^X),
+		size      => 51928,
+		run       => 'Nmake15.exe /o > nul',
+		check_for => 'Nmake.exe',
+		remove    => 1,
+	);
+
+	die <<'END_MESSAGE' unless $rv;
+
+-------------------------------------------------------------------------------
+
+Since you are using Microsoft Windows, you will need the 'nmake' utility
+before installation. It's available at:
+
+  http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/Nmake15.exe
+      or
+  ftp://ftp.microsoft.com/Softlib/MSLFILES/Nmake15.exe
+
+Please download the file manually, save it to a directory in %PATH% (e.g.
+C:\WINDOWS\COMMAND\), then launch the MS-DOS command line shell, "cd" to
+that directory, and run "Nmake15.exe" from there; that will create the
+'nmake.exe' file needed by this module.
+
+You may then resume the installation process described in README.
+
+-------------------------------------------------------------------------------
+END_MESSAGE
+
+}
+
+1;